Automatic sample preparation equipment for food safety detection

Abstract

The utility model provides automatic sample preparation equipment for food safety detection, and belongs to the technical field of food safety detection. Comprising a tank body, a control motor, a stirring mechanism and a solvent adding mechanism, the solvent adding mechanism comprises a liquid conveying pipe, the liquid conveying pipe is installed at the position outside the tank body, one end of the liquid conveying pipe extends into the tank body, a connecting rod is movably arranged in one end of the liquid conveying pipe, and a sealing ball is arranged at one end of the connecting rod; the pushing plate is installed at one end of the connecting rod and used for pushing the connecting rod to move. A driving motor is mounted at the top of the tank body, the driving motor can drive a sector plate to rotate, a pushing plate is extruded by the sector plate, a connecting rod can be pushed to move, a sealing ball is controlled to move away from a port of a liquid conveying pipe, and a solvent in a liquid storage bin is conveniently conveyed into the tank body to be mixed with raw materials; and the conditions of local excessive reaction and non-uniform product quality possibly caused by over-high concentration of the additive in a partial region are avoided.

Description

Technical Field

[0001] This utility model relates to the field of food safety testing technology, and more specifically, to an automated sample preparation device for food safety testing. Background Technology

[0002] In food production, food ingredients are tested, such as pastry ingredients. Most pastry ingredients are solid powders, which are stored separately when not in use. Testing pastry ingredients involves mixing the ingredients together, which requires stirring to obtain a mixed raw material. This mixed raw material can then be tested to detect whether there are any excessive substances that could harm the human body.

[0003] Currently, solvents need to be added during the raw material mixing process. Some components in food mixtures may be poorly soluble in water or other media, but soluble in specific solvents. Adding solvents helps these components dissolve fully for subsequent testing. For example, when testing the fat content in food, organic solvents such as petroleum ether are usually used to dissolve the fat, separating it from the raw materials for accurate measurement. However, in practice, the solvent is added to the mixing tank all at once. Adding additives all at once can lead to excessively high additive concentrations in some areas due to insufficient or untimely mixing, potentially causing localized over-reactions and uneven product quality. Therefore, an automated sample preparation device for food safety testing is proposed to solve these problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an automated sample preparation device for food safety testing that overcomes or at least partially solves the above technical problems.

[0005] This utility model is implemented as follows:

[0006] This utility model provides an automated sample preparation device for food safety testing, including a tank, a control motor, and a solvent addition mechanism;

[0007] The solvent addition mechanism includes:

[0008] An infusion tube is installed on the outside of the tank, with one end of the infusion tube extending into the inside of the tank.

[0009] A connecting rod is movably disposed inside one end of the infusion tube, and a sealing ball is provided at one end of the connecting rod;

[0010] A push plate is installed at one end of the connecting rod and is used to push the connecting rod to move.

[0011] A stirring mechanism is installed inside the tank and is used to stir the raw materials inside the tank.

[0012] In a preferred embodiment, the agitation mechanism includes an agitator rod, an agitator plate, and a spiral tilting plate. A control motor is stably mounted on the top of the tank, and a drive shaft is stably mounted on the output end of the control motor, with the agitator rod fixedly connected to one end of the drive shaft.

[0013] In a preferred embodiment, an agitator plate and a spiral turning plate are fixedly mounted on the outer surface of the agitator rod, and the spiral turning plate is disposed on the inner side of the agitator plate.

[0014] In a preferred embodiment, a liquid storage chamber is fixedly installed at the upper end of the infusion tube, the interior of the liquid storage chamber is connected to the interior of the infusion tube, and an observation window is provided on the outer surface of the liquid storage chamber.

[0015] In a preferred embodiment, a drive motor is also fixedly installed on the top of the tank. A round shaft is installed at the output end of the drive motor, and one end of the round shaft extends into the interior of the tank. A sector plate corresponding to the position of the push plate is stably installed at the bottom of the round shaft.

[0016] In a preferred embodiment, a spring is fixedly installed on one side of the push plate, and one end of the spring is stably connected to the inner wall of the tank to drive the connecting rod to reciprocate inside the infusion tube.

[0017] In a preferred embodiment, a damping rod is also installed on the inner wall of the tank, and the telescopic end of the damping rod is stably connected to the push plate.

[0018] In a preferred embodiment, a feed pipe is installed at the top of the tank, and a discharge pipe is also installed at the bottom of the tank.

[0019] The present invention provides an automated sample preparation device for food safety testing, the advantages of which include:

[0020] 1. By installing a drive motor on the top of the tank, the drive motor drives the sector plate to rotate. The sector plate squeezes the push plate, which in turn moves the connecting rod and controls the sealing ball to move away from the infusion pipe port. This facilitates the delivery of solvent from the storage tank into the tank for mixing with the raw materials. Conversely, when the sector plate leaves the push plate, the sealing ball can return to the infusion pipe port to seal the infusion pipe. This allows for intermittent addition of solvent, ensuring effective mixing of the raw materials and preventing excessively high additive concentrations in some areas, which could lead to over-reaction and uneven product quality.

[0021] 2. By installing an agitator rod at the output end of the control motor, and installing an agitator plate and a spiral turning plate on the agitator rod, the raw materials can not only be agitated, but also turned over, thus improving the mixing effect of the raw materials. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the tank body of this utility model;

[0025] Figure 3 This is a schematic diagram of the sector-shaped plate structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the disassembled structure of the connecting rod and infusion tube of this utility model.

[0027] In the diagram: 1. Tank; 2. Control motor; 3. Solvent adding mechanism; 31. Infusion pipe; 32. Connecting rod; 321. Sealing sphere; 33. Push plate; 4. Stirring mechanism; 41. Stirring rod; 42. Stirring plate; 43. Spiral turning plate; 5. Drive shaft; 6. Storage tank; 7. Observation window; 8. Drive motor; 9. Round shaft; 10. Sector plate; 11. Spring; 12. Damping rod; 13. Feed pipe; 14. Discharge pipe. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Example

[0030] Reference Figures 1-4This utility model provides a technical solution: an automated sample preparation device for food safety testing, including a tank 1, a control motor 2, a stirring mechanism 4, and a solvent adding mechanism 3. The solvent adding mechanism 3 includes a liquid infusion pipe 31, which is installed outside the tank 1 and has one end inserted into the interior of the tank 1. A connecting rod 32 is movably disposed inside one end of the liquid infusion pipe 31, and a sealing ball 321 is provided at one end of the connecting rod 32. A push plate 33 is installed at one end of the connecting rod 32 to push the connecting rod 32 to move. The stirring mechanism 4 is disposed inside the tank 1 to stir the raw materials inside the tank 1.

[0031] In a preferred embodiment, the agitation mechanism 4 includes an agitation rod 41, an agitation plate 42, and a spiral turning plate 43. A control motor 2 is stably installed on the top of the tank body 1. A transmission shaft 5 is stably installed on the output end of the control motor 2, and the agitation rod 41 is fixedly connected to one end of the transmission shaft 5. The agitation plate 42 and the spiral turning plate 43 are fixedly installed on the outer surface of the agitation rod 41, and the spiral turning plate 43 is disposed on the inner side of the agitation plate 42.

[0032] In actual use, various raw materials used in food manufacturing are added into the interior of the tank 1 through the feed pipe 13. Then, the control motor 2 is turned on. The equipment has a support base fixedly installed on the top of the tank 1. The control motor 2 is stably installed on the support base, which allows for stable use of the control motor 2. The drive shaft 5 at the output end of the control motor 2 passes through the interior of the support base and enters the interior of the tank 1. The drive shaft 5 extends into the interior of the tank 1 to one-third of its depth. A stirring rod 41 is stably installed at one end of the drive shaft 5. A stirring plate 42 is fixedly installed on the outer surface of the stirring rod 41. The stirring plate 42 is set in a long strip shape and is located at the spiral gap of the spiral turning plate 43.

[0033] Driven by the control motor 2, the stirring plate 42 can rotate relative to the raw material, and the spiral turning plate 43 can turn the raw material from the inside to the outside, thereby improving the stirring effect of the raw material.

[0034] In a preferred embodiment, a storage tank 6 is fixedly installed at the upper end of the infusion pipe 31. The interior of the storage tank 6 is connected to the interior of the infusion pipe 31. An observation window 7 is also provided on the outer surface of the storage tank 6. When the raw material is stirred, solvent needs to be added to the raw material. Therefore, when processing the raw material, the solvent is added to the interior of the storage tank 6 for storage. Finally, the solvent enters the tank 1 through the infusion pipe 31, so that the raw material is stirred and the solvent is added at the same time.

[0035] A drive motor 8 is fixedly installed on the top of the tank 1. A round shaft 9 is installed at the output end of the drive motor 8, and one end of the round shaft 9 extends into the interior of the tank 1. A fan-shaped plate 10 corresponding to the position of the push plate 33 is stably installed at the bottom of the round shaft 9. A spring 11 is fixedly installed on one side of the push plate 33. One end of the spring 11 is stably connected to the inner wall of the tank 1, which is used to drive the connecting rod 32 to reciprocate inside the infusion tube 31. A damping rod 12 is also installed on the inner wall of the tank 1, and the telescopic end of the damping rod 12 is stably connected to the push plate 33. In order to ensure that all raw materials can be mixed with solvent, the equipment will not add all the solvent into the tank 1 at once during actual operation, but will add the solvent in an intermittent manner.

[0036] During operation, the drive motor 8 is controlled to work. The drive motor 8 is located on one side of the control motor 2. The drive motor 8 drives the circular shaft 9 to rotate, which in turn drives the sector plate 10 to rotate. The sides of the sector plate 10 are all arc-shaped. In this way, when the sector plate 10 rotates to the position of the push plate 33, the side of the sector plate 10 will slide with the push plate 33 and push the push plate 33 until the positions of the sector plate 10 and the push plate 33 are exactly aligned, at which point the push plate 33 will be pushed to the maximum distance.

[0037] At this time, the connecting rod 32 will push the sealing ball 321 to the position of the thick tube on the infusion tube 31, the end of the infusion tube 31 will open, and the solvent inside the storage tank 6 will flow into the infusion tube 31 and then into the tank 1 to mix the solvent with the raw materials.

[0038] A feed pipe 13 is installed at the top of the tank body 1, and a discharge pipe 14 is also installed at the bottom of the tank body 1.

[0039] Specifically, the working process or principle of an automated sample preparation device for food safety testing is as follows: Currently, solvents need to be added during the raw material mixing process. Some components in food mixtures may be poorly soluble in water or other media, but soluble in specific solvents. Adding solvents helps these components dissolve fully for subsequent testing. For example, when testing the fat content in food, organic solvents such as petroleum ether are usually used to dissolve the fat, separating it from the raw materials for accurate measurement. However, in operation, the solvent is added to the mixing tank all at once. Adding the additive all at once can lead to excessively high additive concentrations in some areas due to untimely or insufficient mixing, potentially causing localized over-reaction and uneven product quality. Therefore, this device was designed to solve this problem.

[0040] This device allows for the intermittent addition of solvents, with the solvent selected based on the raw materials. For example, when testing for oils in food, organic solvents such as petroleum ether and diethyl ether are commonly used. The solvent is added to the inside of the storage tank 6, and then various raw materials are added to the inside of the tank 1. Subsequently, the stirring rod 41 is driven to rotate by the control motor 2. When the stirring rod 41 rotates, it drives the stirring plate 42 to rotate, which stirs the raw materials inside the tank 1 and mixes them together. Furthermore, when the stirring rod 41 rotates, it also drives the spiral turning plate 43 to rotate, which turns the raw materials inside the tank 1 upward, thereby improving the stirring effect on the raw materials.

[0041] While the raw materials are being agitated, the drive motor 8 is also controlled to rotate. The drive motor 8 drives the circular shaft 9 to rotate and drives the sector plate 10 to rotate. When the sector plate 10 rotates to the position corresponding to the push plate 33, it pushes the push plate 33 to move towards the position of the infusion tube 31. The push plate 33 pushes the connecting rod 32 to move towards the position of the infusion tube 31 together. The connecting rod 32 pushes the sealing ball 321 to move inside the infusion tube 31, and moves the sealing ball 321 away from the position of the infusion tube 31 port. In this state, the solvent inside the storage tank 6 will flow into the interior of the tank 1, mix the solvent with the raw materials, and dissolve the difficult-to-dissolve substances, which is convenient for subsequent raw material testing.

[0042] After the sector plate 10 moves away from the position of the push plate 33, the push plate 33 will return to its initial position under the reaction force of the spring 11, and drive the connecting rod 32 to move in the opposite direction inside the infusion tube 31, so that the sealing ball 321 can block the position of the infusion tube 31 port. In this state, the solvent will not flow out. This device also prevents the push plate 33 from moving repeatedly under the action of the spring 11. Therefore, the push plate 33 is connected to the telescopic end of the damping rod 12 to prevent the push plate 33 from not moving back and forth after moving, which meets the usage requirements.

[0043] The solvent can be added to the tank 1 intermittently using the above method, so that the solvent can be mixed with all the raw materials, thereby improving the processing effect of the raw materials. The processed raw materials can then be discharged from the discharge pipe 14, which facilitates the testing of the removed raw materials.

Claims

1. An automated sample preparation apparatus for food safety testing, characterized by, It includes a tank (1), a control motor (2) and a solvent adding mechanism (3), and also includes a stirring mechanism (4), which is installed inside the tank (1) and is used to stir the raw materials inside the tank (1); The solvent addition mechanism (3) includes: An infusion tube (31) is installed outside the tank body (1) and one end extends into the tank body (1); A connecting rod (32) is movably disposed inside one end of the infusion tube (31) and has a sealing ball (321) at one end; A push plate (33) is installed at one end of a connecting rod (32) to push the connecting rod (32) to move.

2. The automated sample preparation apparatus for food safety testing of claim 1, wherein, The stirring mechanism (4) includes a stirring rod (41), a stirring plate (42) and a spiral turning plate (43). A control motor (2) is stably installed on the top of the tank (1). A transmission shaft (5) is stably installed on the output end of the control motor (2), and the stirring rod (41) is fixedly connected to one end of the transmission shaft (5).

3. The automated sample preparation device for food safety testing of claim 2, wherein, The stirring rod (41) has a stirring plate (42) and a spiral turning plate (43) fixedly installed on its outer surface. The spiral turning plate (43) is located on the inner side of the stirring plate (42).

4. The automated sample preparation device for food safety testing of claim 3, wherein, The infusion tube (31) is fixedly installed with a liquid storage chamber (6) at the upper end. The interior of the liquid storage chamber (6) is connected to the interior of the infusion tube (31). An observation window (7) is also provided on the outer surface of the liquid storage chamber (6).

5. The automated sample preparation device for food safety testing of claim 4, wherein, A drive motor (8) is fixedly installed on the top of the tank (1). A round shaft (9) is installed at the output end of the drive motor (8), and one end of the round shaft (9) is inserted into the interior of the tank (1). A fan-shaped plate (10) corresponding to the position of the push plate (33) is stably installed at the bottom of the round shaft (9).

6. The automated sample preparation device for food safety testing of claim 5, wherein, A spring (11) is fixedly installed on one side of the push plate (33). One end of the spring (11) is stably connected to the inner wall of the tank (1) and is used to drive the connecting rod (32) to reciprocate inside the infusion tube (31).

7. The automated sample preparation device for food safety testing of claim 6, wherein, The inner wall of the tank (1) is also equipped with a damping rod (12), and the telescopic end of the damping rod (12) is stably connected to the push plate (33).

8. The automated sample preparation device for food safety testing of claim 7, wherein, A feed pipe (13) is installed at the top of the tank (1), and a discharge pipe (14) is also installed at the bottom of the tank (1).

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